Why Mensa has no single IQ requirement
Mensa has no single IQ score requirement because its standard is a rank: the top 2 percent on an accepted test. The score at that rank depends on the scale used by the test.
Wechsler IQ scores have a mean of 100 and a standard deviation of 15. The IQ standard deviation page explains how a scale’s spread affects the scores it reports.
What score marks the top 2 percent
Using the normal curve, our calculations put the start of the top 2 percent at 130.8 for SD 15, 132.9 for SD 16, and 149.3 for SD 24. These are calculated cut-offs, not a single score that applies to every test.
Mensa’s page names 132 on Stanford-Binet and 148 on Cattell. Small differences between published and computed cut-offs can come from rounding and each test’s own norms.
What kind of test can qualify you
A supervised test that Mensa accepts can qualify you. Mensa accepts only supervised scores from tests it approves, so an unsupervised online quiz cannot establish eligibility, even if it displays an IQ-like number.
Check Mensa’s requirements for accepted tests and testing options in your location. The qualifying score must come from the test and process Mensa recognizes.
Why the IQClock test cannot qualify you
The IQClock test cannot qualify anyone because it has no norms and prints no IQ. It is a free timed reasoning test, not an assessment that reports a normed score Mensa can evaluate.
You can try timed reasoning questions with the free IQClock test. Its result is not an IQ score and cannot be submitted as a qualifying score.